Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840661 | Sulphonyliso(thio)urea derivatives and herbicidal use thereof | Christa Fest, Rolf Kristen, Joachim Kluth, Klaus-Helmut Muller, Theodor Pfister +6 more | 1989-06-20 |
| 4820337 | 1-(2-oxyaminosulphonylphenylsulphonyl)-3-triazinyl-ureas | Christa Fest, Rolf Kirsten, Joachim Kluth, Klaus-Helmut Muller, Theodor Pfister +5 more | 1989-04-11 |